This is an interactive guide to the human body for young children. The paper mechanisms are designed to teach the reader how the body actually works. Included is a moving skeleton, Mr Bony, which is held in a perforated pouch inside the book. There are pull and push mechanisms which show, for example, how the pupil gets larger and smaller, and how muscles work. Also featured is a scratch and sniff panel, and different textures for children to feel. Simple experiments such as testing your sense of taste are presented through characters and their pets.